X w william pattebson



(No Model.) A

W. PATTERSON.

IOAD SGRAPER. l, BT02535310; Patented Fab.v 7,1882.

N. PETERS. PhnwLilhngraphen wnmingum. n.

UNITED STATES PATENT OFFICE.

-WILLIAM PATTERSON, E SALEM,I NEW JERSEY.

ROAAD-SCRAPER.

SPECIFICATION forming part of Letters Patent No. 253,310, dated February 7,1882.

1 Application tiled May 4,1851I (No model.)

' 1' o all whom it may concern:

Be it known that I, WILLIAM PATTERSON, a citizen of the United States, residing at Salem, in the county of Salem, State of New Jersey, have invented a new and useful Improvement in Road-Scrapers, which improvement is fully set forth in the following specilication and accompanying drawings,in which- Figure 1 is a top or plan view of the scraper embodying my invention. Fig. 2 is a vertical section thereof. Fig. 3 is a rear view of the scraper plate or blade.

Similar letters of reference indicate corre.

spondin g parts in the several figures.

My invention relates to improvements in the class of roadscrapers -more especially shown in Letters Patent N os. 47,977 and 178,948, granted to me respectively May 30, 1865, and June 20, 1876; and said invention consists-of the combination, with a latching-lever and a scraper-plate, of an adjustable tongue, with which said lever engages.`

It also consists of the scraper-plate land the tongue, in combinationwith a latching-lever having a depending rearwardly-extending toe, and a notch in front of Said toe, as will be here# inafter set forth.

Referring to the drawings, Arepresents the scraper board or plate, which is pivoted to the upright arms of the circular frame B, which arms serve as Supports for said scraper-plate, the frame having iitted to it lthe sliding connection G of the draft pole or shafts D, and

pilot or caster wheel E, for adjusting the posiv tion of the wheel relatively to the desired obliquity of draft of the scraper.

To the frame B, at one end thereof, is tted the adjustable latching-lever F, by which the Scraper-plate is held in operativel position, and which, when raised and detached from said plate, permits the latter to be tilted when required, this being conveniently accomplished by the hand-lever G connected to the plate A.

Rising from the Scraper-plate atrthe portion immediately beneath the lever F is a tongue, H, which, adapted to engage with the notch a of said lever F, is formed with a vertical slot, b, through which passes a bolt, c, for connecting the-tongue to the plate, and admitting of the' vertical adjustment of the tongue rela- 5o tively to the angle at which the plate is set and the time when the tongue is to engage with the notch a of the lever F, and thus lock the' plate and lever.

Depending from the lever F,just in the rear of the notch a, is a rearwardly-curved toe oru guard, J, which is sufficiently long to extend below the top edge of the plate or of the tongue H, whereby, in returning the scraperplate from its tilted position, which is generally ac- 6o complished with some force, it raises the lever F and strikes the toe J, so that the rearward motion of the plate .is limited, and the notch a ofthe lever unfailingly engages with the tongue H, thus securely holding the scraper-plate in upright position. The scraper plate is of twisted or mold-board form, so that when earth, 85e., is scraped bythe plate it is carried thereby in a constant stream to one side of the road; and prevented from overturning until it is about 7o to leave the plate-#say at the overhanging part d-which also prevents the earth, &c., passing rearward over the top of the plate.

The bottom edge or part,A, of the scraperplate is removable from the main portion All thereof, and formed with a shoulder, e, against which the portion A is litted, said 'part A being screwed or bolted to the main portion A, and thus securely held. When the part A is worn or fractured it may be removed and 8o` repaired or replaced, as required. v

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1'. The scraper-plate, in combination with the 85 adjustable tongue and the latching-lever, substantially as and for the purpose set forth.

2. The scraper-plate A, having a tongue, H, in combination with a latching-lever having a depending rearwardly extending toe and a 9o notch in front of said toe, operating substan, tially as and for the purpose set forth.

WILLIAM PATTERSON. Witnesses:

W. R. GASPERSON, JNO. LIPrINcoTT. 

